Not very much. The popular astrophysicist, told his 1.4 million Twitter followers on Sunday night that the Hollywood hit Gravity isn’t the most scientifically accurate piece of science fiction. Here ...

Gravity is a positively stunning, occasionally horrifying cinematic masterpiece. Of course, that said, it’s got its share of problems. And no one has been more irked by these discrepancies than ...

"Often a story worth telling can fall apart if there is a complete dedication to perfect science. The goal is to make everything seem grounded enough in the physical world that it seems real. So story ...

In L.A. to talk about a new book, the astrophysicist, author, podcaster and all-around spokesman for science has stories to share.

Introduction. Our connection to the universe -- Motion. Everything moves: Expanding universe -- Motion through the millennia -- Universe goes round -- Gravity's hold on the cosmos -- Gravity and light ...